All Occurrences (Extant, Presumed Extant, and Extirpated), Updated September 2013

The Conservation Biology Institute and the United States Geological Survey created this dataset in 2013.  It was created using San Diego thornmint spatial distribution information for San Diego County, CA that was obtained from the following sources: the California Natural Diversity Database (CNDDB) (2006 and 2013), the Consortium of California Herbaria, the San Diego Natural History Museum Database of San Diego County Collected Plant Specimens, the United States Fish and Wildlife Service 5-Year Review for San Diego Thornmint (2009), and McEachern et al. 2007.
 
Additional San Diego thornmint attribute information by element occurrence or population was obtained from many sources including San Diego thornmint experts, land managers, consulting biologists, researchers, published literature, review of summary and status reports, existing geographic information system data, and the CNDDB (2006 and 2013). 
 
San Diego thornmint information is displayed using the CNDDB Element Occurrence (EO) number, when an EO number is available.  If no EO number is available, “0” is used as the identifying number for that San Diego thornmint occurrence.  The following attribute information is included in this dataset for each San Diego thornmint occurrence: specific location or name, UTM location and accuracy, element occurrence status and notes, vegetation community and/or association, management unit, city, property owner, property manager, annual monitoring, questions and comments, survey information (year and population size), identified threats (where provided), implemented management and research actions (where provided), and references and citations.